Piston's Axis Rotax 15x10/12x45,6 mm is an essential spare part for karts equipped with MAX and DD2 engines. Designed to provide optimal performance and increased durability, this piston axis is manufactured according to the rigorous standards of Rotax.

The Pendulum Rotax Max 50 teeth is a precision piece located behind the clutch housing. It ensures the perfect synchronization between the crankshaft and the balancing tree. Its role is to cancel the first-order vibrations generated by the movement of the piston, thus ensuring a fluid motor operation and protecting all the peripheral components.

The19 plastic tooth drive pinionis a safety and central transmission part for engines Rotax FR125 Max (Senior, Junior, Master). Located behind the clutch, it provides the connection between the crankshaft and the pinions of the water pump and oil pump.

Rotax (6) Max (1) DD2 MAX / DD2 clips

The 10.1x17x1 Calibration Washer (ref. 227280) is a technical washer used primarily at the water pump axis and internal engines of engines Rotax. Its precise dimensions (10.1 mm inner diameter, 17 mm outdoor and 1 mm thick) Adjust the lateral gap of the gears, thus avoiding excessive friction or parasitic movements that could damage the housings.

The Pion of water pump pinion (D4 x 15.8 mm) is the mechanical link axis that crosses the water pump shaft to secure the drive sprocket. With its diameter of 4 mm and its precise length of 15.8 mmHe acts as a transmission pin. It is he who physically transmits the rotary motion of the bottom motor to the propeller of the water pump.

Thewater pump sprocket 16 teethis the final part that directly drives the cooling turbine. Fixed on the water pump shaft, it receives the force of the intermediate pinion to circulate the liquid throughout the engine block.

Its accuracy is vital: a broken tooth or severe wear reduces the flow of liquid, resulting in an immediate temperature rise and a loss of performance (loss of horses) from the first minutes of driving.

Thepump intermediate sprocketis an essential internal transmission part for all engines in the range Rotax 125 Max. This double toothed sprocket connects the drive sprocket (vilebrequin) with the sprockets of water and oil pumps.

The 19 teeth water pump primary sprocket (ref. 235725) is located inside the motor housing, mounted on the transmission shaft. Its role is to cause the sprockets of the water pump to ensure a constant circulation of the coolant in the cylinder and the cylinder head. Without a perfect workout, the pump stops and the engine overheats in seconds.